<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <div class="box">

  </div>
</body>
  <style>
    .box{
      width: 200px;
      height: 100px;
      background: yellow;
      padding: 20px;
    }
  </style>
</html>